<template>
  <view v-if="goods_info.goods_name" class="goods_detail-container">
    <!-- 轮播图区域 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" circular="true">
      <swiper-item v-for="(item ,i) in goods_info.pics" :key="i">
      <image :src="item.pics_big" @click="preview(i)"></image>
      </swiper-item>
     
    </swiper>
    <!-- 商品信息区 -->
    <view class="goods-info-box">
      <!-- 商品价格 -->
      <view class="price">￥{{goods_info.goods_price}}</view>
      <!-- 商品信息主体区域 -->
      <view class="goods_info-body">
        <!-- 商品的名字 -->
        <view class="goods_name">{{goods_info.goods_name}}</view>
        <!-- 收藏 -->
        <view class="favi">
          <uni-icons type="star" size="18" color="gray"></uni-icons>
          <text>收藏</text>
        </view>
      </view>
      <!-- 运费区 -->
      <view class="yf">快递：免运费</view>
  
        
    </view>
    <rich-text :nodes="goods_info.goods_introduce"></rich-text>
    
    <!-- 商品导航区域 -->
    <view class="goods-nav">
      <uni-goods-nav :fill="true"  :options="options" :buttonGroup="buttonGroup"  @click="onClick" @buttonClick="buttonClick" />
    </view>
  </view>
</template>

<script>
import { mapMutations,mapActions,mapGetters } from 'vuex'
  export default {
     computed:{
       ...mapGetters(['total'])
     },
     watch:{
       //事件监听，购物车数量的变化
       // total(newVal){
       // const findResult=  this.options.find(x=>x.text==='购物车')
       // if(findResult){
       //   findResult.info=newVal
       // }
       // }
       total:{
         handler(newVal){
           const findResult=this.options.find(x=>x.text==='购物车')
           if(findResult){
             findResult.info=newVal
           }
         },
         immediate:true
       }
     },
    data() {
      return {
       
        goods_info:{},
       options: [{
             icon: 'shop',
             text: '店铺'
           }, {
             icon: 'cart',
             text: '购物车',
             info: 0
           }],
           // 右侧按钮组的配置对象
           buttonGroup: [{
               text: '加入购物车',
               backgroundColor: '#ff0000',
               color: '#fff'
             },
             {
               text: '立即购买',
               backgroundColor: '#ffa200',
               color: '#fff'
             }
           ]
      };
    },
    onLoad(options){
      const goods_id=options.goods_id
      this.getGoodsDetail(goods_id)
      
      
    
      
    },
    methods:{
    ...mapMutations(['addToCart']),
     async getGoodsDetail(goods_id){
      const {data:res}=await  uni.$http.get('api/public/v1/goods/detail',{goods_id})
      if(res.meta.status!==200){
        return uni.showToast({
          title:'数据加载失败',
          duration:1500,
          icon:'none'
        })
      }
      //正则表达式，使用字符串的replace方法，为img标签添加行内样式，从而解决图片底部空白间隙的问题,webp在ios设备显示不了换成jpg
      res.message.goods_introduce=res.message.goods_introduce.replace(/<img /g,'<img style="display:block;" ').replace(/webp/g,'jpg')
      this.goods_info=res.message
      // console.log(this.goods_info)
        
      },
      preview(i){
        uni.previewImage({
          current:i,
          urls:this.goods_info.pics.map(x=>x.pics_big)
        })
      },
      onClick(e){
        if(e.content.text==='购物车'){
          uni.switchTab({
            url:'/pages/cart/cart'
          })
        }
      },
      buttonClick(e){
      if(e.content.text==='加入购物车'){
        //组织商品的信息对象
        const goods={
          goods_id:this.goods_info.goods_id,
          goods_name:this.goods_info.goods_name,
          goods_price:this.goods_info.goods_price,
          goods_count:1,
          goods_small_logo:this.goods_info.goods_small_logo,
          goods_state:true
        }
        
        //调用addCart方法
        this.addToCart(goods)
      }
      }
    
   
    },
  }
</script>

<style lang="scss">
swiper{
  height: 750rpx;
  image{
    width: 100%;
    height: 100%;
  }
}
.goods-info-box{
  padding: 10px;
  padding-right: 0;
  .price{
    color: #c00000;
    font-size: 18px;
    margin: 10px 0;
  }
  .goods_info-body{
    display: flex;
    justify-content: space-between;
    .goods_name{
      font-size: 13px;
      margin-right: 10px;
    }
    .favi{
      width: 120px;
      font-size: 12px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      border-left: 1px solid #efefef;
      color: gray;
    }
  }
  .yf{
    font-size: 12px;
    color: gray;
    margin: 10px 0;
  }
  
}
.goods-nav{
  position:fixed;
  bottom: 0;
  left: 0;
  width: 100%;
}
.goods_detail-container{
  padding-bottom: 50px;
}
</style>
